LAK2G221MELA45ZB

The LAK2G221MELA45ZB is a snap‑in terminal aluminum electrolytic capacitor rated at 400 V and 220 µF, designed for general‑purpose high‑voltage applications. It is a radial, can‑style snap‑in part built for demanding operating conditions, offering extended voltage support within the LAK series and enhanced safety features for environments with voltage fluctuations.

Key value comes from long‑term high‑temperature endurance and ripple handling—specifically, the LAK series withstands 2000 hours of rated ripple current at 105°C—making this part suitable where reliability under heat and ripple stress is required.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a 400 V rated voltage; capacitance tolerance is ±20% at 120 Hz, 20°C.
• High‑temperature Endurance — Endurance specified as 2000 hours with rated ripple current at 105°C, with post‑test limits on capacitance change, tan δ and leakage current defined in the LAK series performance.
• Operating Temperature Range — Rated for use from −25°C to +105°C.
• Snap‑in Radial Package — Secure snap‑in mounting for robust through‑hole installation (radial, can – snap‑in package; size φD × L = 25 mm × 45 mm).
• Ripple Current Capability — Specified ripple current handling of 900 mA at 120 Hz and 1.035 A at 10 kHz for this part.
• Safety Features — Pressure relief vent design to operate without hazardous conditions; the LAK series includes limited DC current ratings and defined test conditions to improve safety under abnormal voltages.
• RoHS Compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863).
• Polarized — Standard polarized aluminum electrolytic construction for DC filtering and bulk storage.

Typical Applications

• General‑purpose power filtering — Bulk smoothing and energy storage on high‑voltage DC rails where a 400 V, 220 µF capacitor is required.
• Equipment in voltage‑fluctuating environments — Designed for systems that experience varying supply conditions, leveraging the LAK series’ extended voltage range and safety features.
• Industrial and commercial electronics — Suitable for industrial power modules and commercial equipment that require high ripple endurance and reliable high‑temperature performance.

Unique Advantages

• Long high‑temperature life: 2000 hours endurance at 105°C under rated ripple current helps maintain capacitance and leakage specifications in hot operating environments.
• High ripple handling: Specified ripple currents (900 mA @120 Hz, 1.035 A @10 kHz) support applications with significant AC ripple on DC lines.
• Robust mounting: Snap‑in radial can provides secure mechanical retention and straightforward through‑hole assembly.
• Defined safety performance: Pressure relief vent operation and series‑level limited DC current ratings (for 400 V, C ≥ 220 µF the limited DC current rating is 7 A under the series test conditions) improve safety under abnormal voltage stress.
• Compact high‑voltage form factor: 25 mm diameter × 45 mm length delivers 220 µF at 400 V in a space‑efficient package.
• Regulatory compliance: RoHS compliance supports use in products requiring restriction of hazardous substances.

Why Choose LAK2G221MELA45ZB?

LAK2G221MELA45ZB combines high‑voltage capability, substantial capacitance and validated high‑temperature endurance in a snap‑in radial package that simplifies PCB retention and assembly. It is positioned for engineers needing a reliable bulk capacitor for 400 V systems, particularly where ripple current and elevated operating temperature are design drivers.

This part suits general‑purpose industrial and commercial designs that demand predictable electrical performance, defined safety behavior under abnormal voltages, and compliance with RoHS. The LAK series’ documented endurance and safety attributes provide clear, testable criteria for system reliability planning.

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